// Horizontal gradient, from left to right
//
// Creates two color stops, start and end, by specifying a color and position for each color stop.
// Color stops are not available in IE9 and below.
@mixin gradient-horizontal(
  $start-color: #555,
  $end-color: #333,
  $start-percent: 0%,
  $end-percent: 100%
) {
  background-image: -webkit-linear-gradient(
    left,
    $start-color $start-percent,
    $end-color $end-percent
  ); // Safari 5.1-6, Chrome 10+
  background-image: -o-linear-gradient(
    left,
    $start-color $start-percent,
    $end-color $end-percent
  ); // Opera 12
  background-image: linear-gradient(
    to right,
    $start-color $start-percent,
    $end-color $end-percent
  ); // Standard, IE10, Firefox 16+, Opera 12.10+, Safari 7+, Chrome 26+
  filter: progid:DXImageTransform.Microsoft.gradient(startColorstr='#{ie-hex-str($start-color)}', endColorstr='#{ie-hex-str($end-color)}', GradientType=1); // IE9 and down
  background-repeat: repeat-x;
}

// Vertical gradient, from top to bottom
//
// Creates two color stops, start and end, by specifying a color and position for each color stop.
// Color stops are not available in IE9 and below.
@mixin gradient-vertical(
  $start-color: #555,
  $end-color: #333,
  $start-percent: 0%,
  $end-percent: 100%
) {
  background-image: -webkit-linear-gradient(
    top,
    $start-color $start-percent,
    $end-color $end-percent
  ); // Safari 5.1-6, Chrome 10+
  background-image: -o-linear-gradient(
    top,
    $start-color $start-percent,
    $end-color $end-percent
  ); // Opera 12
  background-image: linear-gradient(
    to bottom,
    $start-color $start-percent,
    $end-color $end-percent
  ); // Standard, IE10, Firefox 16+, Opera 12.10+, Safari 7+, Chrome 26+
  filter: progid:DXImageTransform.Microsoft.gradient(startColorstr='#{ie-hex-str($start-color)}', endColorstr='#{ie-hex-str($end-color)}', GradientType=0); // IE9 and down
  background-repeat: repeat-x;
}

@mixin gradient-directional($start-color: #555, $end-color: #333, $deg: 45deg) {
  background-image: -webkit-linear-gradient(
    $deg,
    $start-color,
    $end-color
  ); // Safari 5.1-6, Chrome 10+
  background-image: -o-linear-gradient(
    $deg,
    $start-color,
    $end-color
  ); // Opera 12
  background-image: linear-gradient(
    $deg,
    $start-color,
    $end-color
  ); // Standard, IE10, Firefox 16+, Opera 12.10+, Safari 7+, Chrome 26+
  background-repeat: repeat-x;
}
@mixin gradient-horizontal-three-colors(
  $start-color: #00b3ee,
  $mid-color: #7a43b6,
  $color-stop: 50%,
  $end-color: #c3325f
) {
  background-image: -webkit-linear-gradient(
    left,
    $start-color,
    $mid-color $color-stop,
    $end-color
  );
  background-image: -o-linear-gradient(
    left,
    $start-color,
    $mid-color $color-stop,
    $end-color
  );
  background-image: linear-gradient(
    to right,
    $start-color,
    $mid-color $color-stop,
    $end-color
  );
  filter: progid:DXImageTransform.Microsoft.gradient(startColorstr='#{ie-hex-str($start-color)}', endColorstr='#{ie-hex-str($end-color)}', GradientType=1); // IE9 and down, gets no color-stop at all for proper fallback
  background-repeat: no-repeat;
}
@mixin gradient-vertical-three-colors(
  $start-color: #00b3ee,
  $mid-color: #7a43b6,
  $color-stop: 50%,
  $end-color: #c3325f
) {
  background-image: -webkit-linear-gradient(
    $start-color,
    $mid-color $color-stop,
    $end-color
  );
  background-image: -o-linear-gradient(
    $start-color,
    $mid-color $color-stop,
    $end-color
  );
  background-image: linear-gradient(
    $start-color,
    $mid-color $color-stop,
    $end-color
  );
  filter: progid:DXImageTransform.Microsoft.gradient(startColorstr='#{ie-hex-str($start-color)}', endColorstr='#{ie-hex-str($end-color)}', GradientType=0); // IE9 and down, gets no color-stop at all for proper fallback
  background-repeat: no-repeat;
}
@mixin gradient-radial($inner-color: #555, $outer-color: #333) {
  background-image: -webkit-radial-gradient(circle, $inner-color, $outer-color);
  background-image: radial-gradient(circle, $inner-color, $outer-color);
  background-repeat: no-repeat;
}
@mixin gradient-striped($color: rgba(255, 255, 255, 0.15), $angle: 45deg) {
  background-image: -webkit-linear-gradient(
    $angle,
    $color 25%,
    transparent 25%,
    transparent 50%,
    $color 50%,
    $color 75%,
    transparent 75%,
    transparent
  );
  background-image: -o-linear-gradient(
    $angle,
    $color 25%,
    transparent 25%,
    transparent 50%,
    $color 50%,
    $color 75%,
    transparent 75%,
    transparent
  );
  background-image: linear-gradient(
    $angle,
    $color 25%,
    transparent 25%,
    transparent 50%,
    $color 50%,
    $color 75%,
    transparent 75%,
    transparent
  );
}
